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. Author manuscript; available in PMC: 2022 May 31.
Published in final edited form as: Environ Sci Technol. 2022 Apr 27;56(10):6525–6536. doi: 10.1021/acs.est.2c00064

Figure 5.

Figure 5.

Metabolic pathways enriched by the metabolic features unique to saliva. The cells are shaded according to strength of association (i.e., p value) between each of metabolic pathways and significant features that were associated with each indoor/outdoor single traffic pollutant indicator. Pathways are ordered according to the total number of the significant pathway-traffic pollutant pairs (p < 0.05) in both columns. Each pathway is enriched by at least 3 significant annotated unique features.